Weeding machine



June 27, 1939. I N 2,154,254

WEEDING MACHINE Filed July 28, 1958 2 Sheets-Sheet 1 Inventor 0E OZsonJune 27, 1939. Q QLSON 2,164,254

WEEDING MACHINE Filed July 28, 1938 2 Sheets-aneet 2 A ttorneys InventorPatented June 27, 1939 UNITED STATES PATENT OFFICE 1 Claim.

My invention relates to improvements in weeding machines and theprincipal object in view is to provide a machine for destroying Weedswhile at the same time tilling and packing the soil so as to loosen thesame without leaving the top soil in a condition such that erosion willoccur through the action of Wind and water.

To the accomplishment of the foregoing, and subordinate objectspresently appearing, a preferred embodiment of my invention has beenillustrated in the accompanying drawings, set forth in detail in thesucceeding description, and defined in the claim appended hereto.

In said drawings:

Figure 1 is a view in top plan of a weeding machine embodying myimprovement,

Figure 2 is a view in transverse section taken on line 2--2 of Figure 1,looking in the direction indicated by the arrows,

Figure 3 is a fragmentary view in transverse section taken on line 3-3of Figure 1, looking in the direction indicated by the arrows, and

Figure 4 is a view in perspective of one of the blades.

Referring to the drawings by numerals, the machine of my inventioncomprises an axle I having journaled on the opposite ends thereof groundwheels 2, said axle supporting between the wheels 2 a heavy beam 3,preferably of wood, mounted on said axle by suitable U-bolts 4 securedto the beams in any suitable manner. Extending forwardly from the centerof said beam 3 is a draft tongue 5 of any suitable type braced laterallyby a pair of diagonal brace bars 6 bolted to the tongue, as at 1, uponopposite sides thereof and to the front face of said beam 3 adjacentopposite ends thereof, as at 8. Between the tongue 5 and the brace bars6 is a pair of rightangled brace bars 9 disposed upon opposite sides ofsaid tongue 5 and suitably connected to said tongue and to the beam 3.

In the rear of the beam 3 and upon each side of the transverse centerthereof is a battery of trailing weed cutting blades I0 of elongatedrectangular form and having straight front cutting edges II and pointedfront ends l2, said blades H1 in each battery being pivotally mountedfor vertical adjustment on the beam 3 in equidistantly spaced relationlongitudinally of said beam. The mounting for the blades l0 comprises aflat bar E3 of metal for each blade having a front end pivoted, as at M,to a plate I5 secured, as at l6, to the rear sides of the beam 3, saidbar extending rearwardly from said beam and having a down wardly andforwardly curved rear end IE to which the related blade I0 is suitablysecured, preferably on top thereof, to extend forwardly and diagonallythereof in substantially horizontal position with the pointed front end12 thereof foremost. The blades II] of each battery, that is to say onopposite sides of the center of the beam 3, extend in diagonallyopposite directions towards said center.

Each battery of blades I0 is independently adjustable vertically, as aunit, by means of the following: The bars l3 of each battery areconnected in unitary relation by an angle iron I! extending across thesaid bars l3 above the same. An upwardly extending eye bolt I8 ispivoted to each bar i3, as at l9, and has its upper end slidablyextended through said angle iron H with a cotter pin 20 insertedtherethrough. An expansion spring 2| is sleeved on each eye bolt l8between the pivot of the latter and said angle iron IT. The angle ironsI! are mounted on the beam 3 for vertical swinging adjustment tocorrespondingly adjust the connected bars l3 and hence the relatedbattery of blades I0, and by means of a pair of links 2| for each ironI! pivoted, as at 22, to straps 23 bolted on top of the beam 3, saidlinks extending rearwardly and the straps of each pair being bolted, asat 24, to opposite ends of the related angle irons Each angle iron IThas associated therewith a hand lever 24 pivoted, as at 25, on a bracket26 suitably secured to the beam 3 to extend upwardly therefrom andincluding a toothed detent sector 21 with which a suitable detent 28 onthe lever coacts. Each lever 24' is connected to the associated angleiron IT by means of a rod 29 having one end pivoted, as at 30, to thelever and its other end loosely extending through a clip 3| on the angleiron I! and provided with a nut 32 threaded thereon. A cushion spring 33is sleeved onto each rod 29 between the associated clip 3| and a washer34 on the rod backed by a cotter pin 35.

As will now be seen, each battery of blades l0 may be adjustedvertically to out along the surface of the ground or at any depthdesired in the ground and by means of the levers 24', the rods 29connecting the same to the angle irons l1 and the described connectionsbetween the angle irons I! and bars I3, to wit, the eye bolts is. Itwill furthermore be seen that the springs surrounding the eye bolts I8provide for yielding independent upward movement of the bars I3 andhence the blades l0 relative to the angle irons so that said blades l0may ride over obstructions in the ground or on top thereof. Also, by

virtue of the described springs 33 sleeved onto the rods 29, the angleirons I! are permitted upward yielding movement independently to providefor further compensating movement of the blades l0 under difierentworking conditions.

By virtue of the described arrangement of the blades I I], said bladesefiect a draw out and throw the weeds, and earth, toward opposite sidesof the machine as will be clear.

My invention will, it is believed, be readily understood from theforegoing without further explanation.

Manifestly the invention, as described, is susceptible of modificationwithout departing from the inventive concept and right is hereinreserved to such modifications as fall within the scope of the subjoinedclaim.

What I claim is:

In a machine of the class described, a wheel supported axle, a beamextending along said axle, a battery of cutting blades, means to mountsaid blades on said beam to trail behind the same and for adjustmentinto and out of the ground comprising a battery of blade carrying armshinged at one end to the rear of said beam for vertical swingingmovement in laterally spaced relation, a pair of links hinged to saidbeam for vertical swinging movement above said battery of arms andadjacent to opposite ends of said battery of arms, a cross barconnecting the free ends of said links, an upwardly yielding connectionbetween each arm and said bar, a hand lever on said beam swingable intodifferent set positions, and an operating connection between said leverand bar yielding in the direction of said lever.

OSCAR H. OLSON.

